2AK41 Solid Sheave Pulley - 3/4" Bore - Double Groove - 4" OD - Fits 4L, A, AX & 3L Belts Tamiya Bearing outer diameter is 40mm and

outer diameter is 40mm and Width is 12mm

Equal 618072RS1

Set Contains 18 Bearings

KBS50G NB Standard Type Bearing

2AK41 Solid Sheave Pulley - 3/4" Bore - Double Groove - 4" OD - Fits 4L, A, AX & 3L Belts Tamiya Bearing outer diameter is 40mm and2AK41 Solid Sheave Pulley 3 4" Bore Double Groove 4" OD Fits 4L, A, AX Belts This solid cast iron 2AK41 sheave pulley features a 3 4" bore and a 4" outside diameter, designed for use with V belts in sizes 4L, A, and AX. With two grooves, a built in keyway, and hex set screws, it's a reliable fit for both inch and metric shafts in HVAC, agricultural, and industrial setups. Outside diameter: 4" (3. 95" actual OD) Bore size: 3 4" inch Groove count: 2